Check Point Advisories

Comments Inside JPEG Files

Vulnerability
Protection

Check Point Reference:	CPAI-2007-372
Date Published:	6 Jan 2009
Severity:	N/A
Last Updated:	Thursday 01 August, 2013
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	JPEG is a very popular image file format. Specially crafted JPEG files may be used to create a DoS condition and in some cases, arbitrary code execution. There are cases in which certain traffic, although not intended for malicious use, is very unsafe, since it may transfer shellcode which is undetectable by IPS.

Protection Overview

This protection will block JPEG files that contain comments.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75 / R71 / R70

In the IPS tab, click Protections and find the Comments Inside JPEG Files protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Content Protection Violation.
Attack Information: Comment tag found in JPEG file